The world lives and breathes the electric current. This incredible force propelled us to step out of the candle and lamplight.
It was also the miracle to create electronic devices of all kinds and even as a means of transport with the well-known electric starter in cars.
THE electric current it is the displacement of electrically charged particles in a certain direction or direction.
In this situation these particles are in electrostatic imbalance. These electrical currents gave rise to electricity so indispensable today.
THE electric current it is caused by the movement of electrons in a conductor. There is also a possibility that there is a current of positive and negative ions.
THE electric current arises from the difference of an electrical potential (ddp/voltage). When we consider a charge A positive and a charge B negative, then we have an oriented field from charge A to charge B.
When a conducting wire is connected to charge A and charge B, the free electrons move towards charge A, which would be the positive charge, because they have negative charges, since opposites attract.
So, a electric current starts to exist in the wire, with a sense opposite to the electric field that would be the real sense of the electric current.
The mathematical calculation of this current is considered the magnitude of the load passed by a conductor over a period of time.
Index
THE electric current it will always be the same for conductors without dissipation, regardless of their cross-section. This behavior is called continuity of electric current.
If there are different path options in a conductor, for example a wire fork, the current before it will equal the sum of the currents in each part of the fork.
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